<?php

namespace Aws\Arn;

use Aws\Arn\Exception\InvalidArnException;

/**
 * @internal
 */
class AccessPointArn extends Arn implements AccessPointArnInterface {
	use ResourceTypeAndIdTrait;

	/**
	 * AccessPointArn constructor
	 *
	 * @param $data
	 */
	public function __construct($data) {
		parent::__construct($data);
		static::validate($this->data);
	}

	public static function parse($string) {
		$data = parent::parse($string);
		$data = self::parseResourceTypeAndId($data);
		$data['accesspoint_name'] = $data['resource_id'];
		return $data;
	}

	public function getAccesspointName() {
		return $this->data['accesspoint_name'];
	}

	/**
	 * Validation specific to AccessPointArn
	 *
	 * @param array $data
	 */
	protected static function validate(array $data) {
		self::validateRegion($data, 'access point ARN');
		self::validateAccountId($data, 'access point ARN');

		if($data['resource_type'] !== 'accesspoint') {
			throw new InvalidArnException("The 6th component of an access point ARN"
				." represents the resource type and must be 'accesspoint'.");
		}

		if(empty($data['resource_id'])) {
			throw new InvalidArnException("The 7th component of an access point ARN"
				." represents the resource ID and must not be empty.");
		}
		if(strpos($data['resource_id'], ':') !== false) {
			throw new InvalidArnException("The resource ID component of an access"
				." point ARN must not contain additional components"
				." (delimited by ':').");
		}
		if(!self::isValidHostLabel($data['resource_id'])) {
			throw new InvalidArnException("The resource ID in an access point ARN"
				." must be a valid host label value.");
		}
	}
}
